<?php

namespace backend\models;

use Yii;
use yii\base\Model;
use yii\data\ActiveDataProvider;
use backend\models\EduQuestion;

/**
 * EduQuestionSearch represents the model behind the search form of `backend\models\EduQuestion`.
 */
class EduQuestionSearch extends EduQuestion
{
    /**
     * {@inheritdoc}
     */
    public function rules()
    {
        return [
            [['id', 'user_id', 'answer_count', 'status', 'create_time', 'collect_count', 'collect_base'], 'integer'],
            [['context', 'images'], 'safe'],
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function scenarios()
    {
        // bypass scenarios() implementation in the parent class
        return Model::scenarios();
    }

    /**
     * Creates data provider instance with search query applied
     *
     * @param array $params
     *
     * @return ActiveDataProvider
     */
    public function search($params)
    {
        $query = EduQuestion::find();

        // add conditions that should always apply here

        $dataProvider = new ActiveDataProvider([
            'query' => $query,
            'sort' => [
                'defaultOrder' => ['create_time' => SORT_DESC]
            ],
        ]);

        $this->load($params);

        if (!$this->validate()) {
            // uncomment the following line if you do not want to return any records when validation fails
            // $query->where('0=1');
            return $dataProvider;
        }

        // grid filtering conditions
        $query->andFilterWhere([
            'id' => $this->id,
            'user_id' => $this->user_id,
            'answer_count' => $this->answer_count,
            'status' => $this->status,
            'create_time' => $this->create_time,
            'collect_count' => $this->collect_count,
            'collect_base' => $this->collect_base,
        ]);

        $query->andFilterWhere(['like', 'context', $this->context])
            ->andFilterWhere(['like', 'images', $this->images]);

        return $dataProvider;
    }
}
